X Sporting Club
| Nickname(s) | Los incógnitos (the incognitos) | ||
|---|---|---|---|
| Short name | X Sporting Club | ||
| Founded | March 1902 | ||
| Dissolved | 27 September 1908 | ||
| Ground | Campo de la Marina | ||
| League | Catalan championship | ||
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The X Sporting Club, officially founded as Football Club X, was a football team based in Barcelona, Spain, which existed during the years 1902 and 1908. They won the Catalan championship three times in a row between 1905 and 1908. X Sporting Club is best remembered for its role in the founding of RCD Espanyol in 1909.